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Union Pacific Resources Co.: wells in California

Also operates in LA (94), AR (1), TX (674), ND (137), CO (56), UT (4), MS (1), MI (1).

Where they operate

CountyActiveWells
Los Angeles0937
Yolo04
San Joaquin03
Sacramento02
Colusa02
Tulare01
Tehama01
San Mateo01
Kern01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusType
Union Pacific Core Hole S-1 04-037-26325Shut in Service
Union Pacific Core Hole S-6 04-037-26327Shut in Service

Operator names are shown as each state records them. Data as of 2026-10-19.